title: (6,6-Dimethyl-1-phenyl-6,7-di-hydro-5H-pyrrolizin-2-yl)(thio-phen-2-yl)methanone.
abstract: In the title compound, C20H19NOS, the pyrrolizine ring is essentially planar (r.m.s. deviation = 0.001 Å) while the fused dihydro-pyrrolizine ring adopts an envelope comformation with the C atom bearing the methyl substituents as the flap. The dihedral angles between the pyrrolizine and the phenyl and thio-phene rings are 34.54 (7) and 44.93 (7)°, respectively. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into infinite zigzag chains parallel to the b-axis direction.
authors.affiliation: College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuan 050016, People's Republic of China.
authors.forename: Yu-Min
authors.initials: YM
authors.lastname: Liu
authors.forename: Jia-Liang
authors.initials: JL
authors.lastname: Zhong
authors.forename: Wen-Xia
authors.initials: WX
authors.lastname: Sun
authors.forename: Fu-Li
authors.initials: FL
authors.lastname: Zhang
authors.forename: He
authors.initials: H
authors.lastname: Liu